Properties of photon echo on broad spectral lines

A.I. Alekseyev, Igor V. Yevseyev

В. А. Зуйков, А. А. Калачев, В. В. Самарцев +2 more

Vladimir Finkelstein, P. R. Berman

Решетов Владимир Александрович

Abstract The collision-induced stimulated photon echo formed on the broad spectral line on the transition with the angular momentum change J a = 0 → J b = 1 is studied theoretically. The dependencies of the echo intensity on the areas of exciting pulses and on the strength of the external magnetic field under the conditions of experiments in ytterbium ( 174 Yb) vapor are obtained. The ways to measure orientation and alignment relaxation rates of the excited atomic level are discussed.

Н. Н. Рубцова, Гольдорт Вениамин Гершевич, В. Н. Ищенко +5 more

Abstract For the first time, the collision induced stimulated photon echo generated at transition 1 S 0 → 3 P 1 of 174 Yb (type 0–1) in the mixture of gases Yb + Xe was investigated in the presence of weak longitudinal magnetic field, with experimental parameters corresponding to broad spectral line conditions. Comparison of the experimental echo amplitude versus magnetic field strength dependence with the theoretical curve shows a very good agreement, giving rise to an improved estimate for the difference between alignment and orientation decay rates.

Cheng Li, Xiangyang Yu